<b>Relationship between Elasticity and Structure of Polymer Gels with </b><b>Controlled Structure </b>
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- Katashima Takuya
- Department of Macromolecular Science, Graduate School of Science, Osaka University
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- Sakai Takamasa
- Graduate School of Engineering, University of Tokyo
Bibliographic Information
- Other Title
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- <b>均一網目構造を用いた高分子ゲルの弾性と構造の相関の研究 </b>
- 均一網目構造を用いた高分子ゲルの弾性と構造の相関の研究
- キンイツ アミメ コウゾウ オ モチイタ コウブンシ ゲル ノ ダンセイ ト コウゾウ ノ ソウカン ノ ケンキュウ
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Description
Physical properties of polymer gels are determined by various structural parameters. Although molecular models predicting these properties have been proposed, the systematical understanding is inhibited by inevitable heterogeneity of polymer network structure. Recently, we successfully developed the Tetra-PEG gel with homogeneous network structure and well-controlled network structures. In this review, we introduce our recent studies on the dependence of the structural parameters (connectivity and polymer concentration) on the elastic modulus using the Tetra-PEG gel as a model system. Elastic moduli of the polymer gels prepared around the overlapping concentration is predicted by the phantom network model. The model predicting the elastic modulus shifts from the phantom to the affine network models with an increase in the preparation concentration. Based on the experimental results of the tearing test, uniaxial stretching and swelling test, the elasticity of the Tetra-PEG gel is mainly governed by the chemical crosslinks, and the fluctuation of crosslinks is suppressed increasing the concentration. Conventional molecular models considering the effect of the entanglement, however, cannot predict these results. Further modification of the existing molecular models are desired.
Journal
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- Journal of Network Polymer,Japan
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Journal of Network Polymer,Japan 37 (2), 73-80, 2016
Japan Thermosetting Plastics Industry Association
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Details 詳細情報について
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- CRID
- 1390282680437964288
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- NII Article ID
- 130005153816
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- NII Book ID
- AN10521608
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- ISSN
- 2186537X
- 13420577
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- NDL BIB ID
- 027202021
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL Search
- CiNii Articles
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- Abstract License Flag
- Disallowed